If you filed a FAFSA last year, you will be required to pre-fill this year's FAFSA. To pre-fill data in this year's FAFSA, you must have your PIN (and a parent, if dependent) to access the pre-filled FAFSA on the Web application. You must have your PIN(s) to attend the FAFSA workshop. Forgot your PIN? Request a duplicate PIN on www.pin.ed.gov.